<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>页面输出用户信息案例</title>
</head>

<body>
  <script>
    let name = prompt("请输入你的姓名:")
    let age = prompt("请输入你的年龄:")
    document.write(`大家好,我叫${name},今年${age}岁了`)
  </script>
</body>

</html>